Smithsonian National Museum of Natural History  
Lewis and Clark as Naturalists
<EM>Chrysothamnus viscidiflorus </EM>(Hook.) Nutt. - collected by Thos. A. Williams, Cheyenne River, South Dakota, August 1891

collected by Thos. A. Williams, Cheyenne River, South Dakota, August 1891
(from the United States National Herbarium US-519134)
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